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Search Results: 1 - 10 of 47081 matches for " Cristiane Rodrigues;Oliveira "
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Pain characteristics of temporomandibular disorder: a pilot study in patients with cervical spine dysfunction
Pedroni, Cristiane Rodrigues;Oliveira, Anamaria Siriani de;Bérzin, Fausto;
Journal of Applied Oral Science , 2006, DOI: 10.1590/S1678-77572006000500016
Abstract: objective: the purpose of the present pilot study was to describe pain complaints of tmd patients and cervical spine dysfunction. methods: fourteen women with myogenous tmd, cervical motion limitation and rotation of at least one of the three first cervical vertebrae evidenced by radiographic examination participated in this study. the multidimensional pain evaluation was accomplished by a brazilian version of the mcgill pain questionnaire. results: the results showed that the most painful body site mentioned was cervical spine, followed by scapular region and temporomandibular joint. more than half of the volunteers reported temporal pain pattern as rhythmic, periodic and, or still, intermittent. the majority of the patients classified the pain intensity assessed at the moment of the evaluation as mild to discomforting. absolute agreement was not observed among volunteers regarding word dimensions used to describe their pain, although a great number of patients chose the descriptor related to tension as the better expression to describe their painful complaint. conclusion: pain characteristics of tmd patients with cervical spine dysfunction showed cervical spine as a common painful region reported and words related to affective and emotional dimensions of pain perception can be used by these patients to qualify their pain complain.
Effect of thickener agents on dental enamel microhardness submitted to at-home bleaching
Rodrigues, José Augusto;Oliveira, Glauco Paulo Felício;Amaral, Cristiane Mariote;
Brazilian Oral Research , 2007, DOI: 10.1590/S1806-83242007000200013
Abstract: dental bleaching occurs due to an oxidation reaction between the bleaching agents and the macromolecules of pigments in the teeth. this reaction is unspecific and the peroxides can also affect the dental matrix causing mineral loss. on the other hand, recent studies have suggested that the thickener agent carbopol can also cause mineral loss. thus, the objective of this study was to evaluate in vitro the effect of at-home dental bleaching on dental enamel microhardness after the use of bleaching agents with and without carbopol as a thickener agent. bovine dental slabs with 3 x 3 x 3 mm were obtained, sequentially polished, and randomly divided into 4 groups according to the experimental treatment: g1: 2% carbopol; g2: 10% carbamide peroxide with carbopol; g3: carbowax; g4: 10% carbamide peroxide with poloxamer. bleaching was performed daily for 4 weeks, immersed in artificial saliva. enamel microhardness values were obtained before the treatment (t0) and 7 (t1), 14 (t2), 21 (t3), 28 (t4), and 42 (t5) days after the beginning of the treatment. anova and tukey's test revealed statistically significant differences only for the factor time (f = 5.48; p < 0.01). all bleaching and thickener agents caused no alterations on the enamel microhardness.
Avalia??o da metodologia microbiológica para determina??o de 5-metiltetrahidrofolato em suco de caju (Anacardium occidentale L.)
Sancho, Soraya de Oliveira;Maia, Geraldo Arraes;Figueiredo, Raimundo Wilane de;Rodrigues, Sueli;Rabelo, Maria Cristiane;
Ciência e Tecnologia de Alimentos , 2010, DOI: 10.1590/S0101-20612010000300010
Abstract: although cashew apple juice has been highly consumed in brazil and several studies on its nutritional value have been published, no studies on the determination of folate contents in this juice were found in the literature. several analytic techniques can be employed for the folate determination in foods. in this study, the microbiological assay using lactobacillus casei was employed. enzyme treatment and ultrasound waves were tested as pretreatment. the use of standards of folic acid and folate were also evaluated. the results showed that the enzyme treatment cannot be replaced by ultrasound treatment. the consumption of 200 ml of in natura cashew apple juice corresponds to a folate intake of 500 μg, which is higher than the recommended daily intake for adults.
Chemical dispersants and pre-treatments to determine clay in soils with different mineralogy
Rodrigues, Cristiane;Oliveira, Virlei álvaro de;Silveira, Pedro Marques da;Santos, Glenio Guimar?es;
Revista Brasileira de Ciência do Solo , 2011, DOI: 10.1590/S0100-06832011000500013
Abstract: knowledge of the soil physical properties, including the clay content, is of utmost importance for agriculture. the behavior of apparently similar soils can differ in intrinsic characteristics determined by different formation processes and nature of the parent material. the purpose of this study was to assess the efficacy of separate or combined pre-treatments, dispersion methods and chemical dispersant agents to determine clay in some soil classes, selected according to their mineralogy. two brazilian oxisols, two alfisols and one mollisol with contrasting mineralogy were selected. different treatments were applied: chemical substances as dispersants (lithium hydroxide, sodium hydroxide, and hexametaphosphate); pre-treatment with dithionite, ammonium oxalate, and hydrogen peroxide to eliminate organic matter; and coarse sand as abrasive and ultrasound, to test their mechanical action. the conclusion was drawn that different treatments must be applied to determine clay, in view of the soil mineralogy. lithium hydroxide was not efficient to disperse low-cec electropositive soils and very efficient in dispersing high-cec electronegative soils. the use of coarse sand as an abrasive increased the clay content of all soils and in all treatments in which dispersion occurred, with or without the use of chemical dispersants. the efficiency of coarse sand is not the same for all soil classes.
Produ??o de matéria seca e eficiência nutricional para P, Ca e Mg em leguminosas herbáceas
Fernandes, Antonio Rodrigues;Morais, Francisco Ilton de Oliveira;Linhares, Lílian Cristiane Fernandes;Silva, George Rodrigues da;
Acta Amazonica , 2007, DOI: 10.1590/S0044-59672007000200001
Abstract: the legumes used for green manure have been introduced in agricultural systems for recovering degraded soils by intensive use. the objective of this work was to evaluate the response of herbaceous legumes to liming and p application on dry matter and its nutritional efficiency. the experiment was developed in greenhouse at the soil science department of the federal university agricultural of amazon (brazil). soil used was a dystrophic yellow latosol, sampled in the 0 - 20 cm depth. a randomized block experimental design was used with treatments arranged in a factorial 33, comparing three legume species: velvet bean (stizolobium atterrimum), "mucuna cochinchinensis" (stilozobium cochinchinensis) and jack bean (canavalia ensiformes); three doses of liming (0, 4 and 8 t ha-1 of limestone) and of triple superphosphate (0, 25 and 45 mg p dm-3 of soil), with four replications each one. results showed that "mucuna cochinchinensis" and jack bean produced higher amounts of dry matter than velvet bean. the first species accumulated higher amount of p and the second species higher amount of ca in the tissue. the "mucuna cochinchinensis" species showed higher use efficiency of ca, mg and p in the absence of liming. the jack bean and mucuna cochinchinensis can have better performance than velvet bean, in weathered soils with low concentration of p, ca and mg, since they presented higher translocation efficiency and use of these nutrients, respectively.
A vertigem da descontinuidade: sobre os usos da história na arqueologia de Michel Foucault
Oliveira, Cristiane;
História, Ciências, Saúde-Manguinhos , 2008, DOI: 10.1590/S0104-59702008000100010
Abstract: with the goal of identifying ruptures with traditionalist history discourse, this essay offers a reading of the various uses of history in foucault's archeology. i begin by analyzing and describing the purpose of the notion of archeology, based on foucault's own elucidations. i then describe the set of notions (event, discursive formation, and enunciation) intertwined within the concept of archive, in an attempt to demonstrate foucault's analytical inventiveness in his contribution to the field of history, which he approaches from the paradox between unity and dispersion of enunciations. lastly, i explore the enunciation of mechanisms for controlling discourse, with the aim of identifying elements of transition from descriptive work on discursive formations undertaken in the archeology of knowledge, to an analysis of the interplay of strategies both in discursive as well as non-discursive practices found in the genealogy of power.
Eugenizar a alma: a constitui??o da euphrenia no projeto de higiene mental voltado à infancia da Liga Brasileira de Hygiene Mental
Oliveira, Cristiane;
Revista Latinoamericana de Psicopatologia Fundamental , 2011, DOI: 10.1590/S1415-47142011000400004
Abstract: this article analyzes the establishment of "euphrenia" as a new domain for brazilian psychiatry in its eugenic and hygienic approach to children's health. an analysis of medical and psychological knowledge regarding children's minds in brazil in the 1920s and 1930s reveals the intense emotional climate in families as the basis for a project in social normalization, still focused on eugenics but also influenced by a psychology of adaptation.
Anesthetic technique for inferior alveolar nerve block: a new approach
Palti, Dafna Geller;Almeida, Cristiane Machado de;Rodrigues, Antonio de Castro;Andreo, Jesus Carlos;Lima, José Eduardo Oliveira;
Journal of Applied Oral Science , 2011, DOI: 10.1590/S1678-77572011000100004
Abstract: background: effective pain control in dentistry may be achieved by local anesthetic techniques. the success of the anesthetic technique in mandibular structures depends on the proximity of the needle tip to the mandibular foramen at the moment of anesthetic injection into the pterygomandibular region. two techniques are available to reach the inferior alveolar nerve where it enters the mandibular canal, namely indirect and direct; these techniques differ in the number of movements required. data demonstrate that the indirect technique is considered ineffective in 15% of cases and the direct technique in 13-29% of cases. objective: the aim of this study was to describe an alternative technique for inferior alveolar nerve block using several anatomical points for reference, simplifying the procedure and enabling greater success and a more rapid learning curve. material and methods: a total of 193 mandibles (146 with permanent dentition and 47 with primary dentition) from dry skulls were used to establish a relationship between the teeth and the mandibular foramen. by using two wires, the first passing through the mesiobuccal groove and middle point of the mesial slope of the distolingual cusp of the primary second molar or permanent first molar (right side), and the second following the oclusal plane (left side), a line can be achieved whose projection coincides with the left mandibular foramen. results: the obtained data showed correlation in 82.88% of cases using the permanent first molar, and in 93.62% of cases using the primary second molar. conclusion: this method is potentially effective for inferior alveolar nerve block, especially in pediatric dentistry.
Doses e fontes de nitrogênio em pastagem de capim-marandu: I - altera??es nas características químicas do solo
Costa, Kátia Aparecida de Pinho;Faquin, Valdemar;Oliveira, Itamar Pereira de;Rodrigues, Cristiane;Severiano, Eduardo da Costa;
Revista Brasileira de Ciência do Solo , 2008, DOI: 10.1590/S0100-06832008000400023
Abstract: nitrogen deficiency is one of the important causes of degradation of cultivated pasture, mainly in the case of brachiaria pastures. soil recovery is a way to restore the productive capacity of pastures in degradation. among nutrients, nitrogen is considered essential and largely responsible for pasture area recovery. the research objective was to evaluate the effects of application of nitrogen doses and sources on marandu grass pasture over a period of three years, based on soil chemical characteristics such as ph, exchangeable aluminum, soil organic matter, total nitrogen and inorganic nitrogen (n-no3-, n-nh4+). the experiment was carried out from july 2003 to march 2006 on a model farm of the universidade estadual de goiás, in an area of 882 m2. pasture had been grown for more than ten years and was considered in moderate degradation phase, in view of the low herbage yields. a split-plot combination with three replications was used. the experiment had a complete randomized block, 2 x 4 factorial design, with two n sources (ammonium sulfate and urea) and four n doses (0, 100, 200, and 300 kg ha-1 yr-1 ). after three years of continuous nitrogen application at highest doses to marandu grass, the soil ph decreased from 5.6 to 4.6 and al3+ content increase from 0.05 to 0.41 cmolc dm-3. the ammonium sulfate source increased soil acidity more than urea. application of high nitrogen rates increased al and organic matter contents, soil total nitrogen, n-no3- and n-nh4+. the n-nh4+ contents were higher than n-no3- in all nitrogen doses and years evaluated.
Adsor??o e deslocamento do íon cádmio em solos do cerrado
Oliveira, Luiz F. C.;Lemke-de-Castro, Mara L.;Rodrigues, Cristiane;Borges, Jácomo D.;
Revista Brasileira de Engenharia Agrícola e Ambiental , 2010, DOI: 10.1590/S1415-43662010000800009
Abstract: cadmium is commonly found in industrial and urban residues, sewer sludge and fertilizers, and when disposed in the soil can represent risks of pollution of the soil and water. this study aimed to analyze the adsorption and movement of cadmium in red latosol, red argisol, red nitosol and quartzarenic neosol found in cultivated áreas in the state of goiás. in order to quantify the adsorbed cadmium, 5 ml of oven-dried soil were stirred in beaker, for 24 h, with 50 ml of cacl2.2h2o (0.01 mol l-1) solution containing different quantities of cadmium (0.10, 1.80, 19.00, 46.60 and 105.70 mg l-1). in the trial of the transport of cd in soil columns a displacement solution of 105.70 mg l-1 was used. sorption of cd was evaluated by potential and linear models of the freundlich isotherm and the retardation factor (r) and hydrodynamic dispersion coefficient (d) were adjusted by minimizing the sum of squares of deviations between the experimental and simulated breakthrough curve. both isothermal and linear potential and the adjustment of the transport parameters d and r showed a good fit for describing the adsorption and the displacement of cd in the different studied soils. the quartzarenic neosol showed lower retention of cd in comparison to other classes of soil, and therefore more vulnerable to contamination of groundwater, followed by the latosol, argisol and nitosol.
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